2. Cut through the coracoids and clavicles on each side, close to the 

 base of the arm, and carefully remove this part of the pectoral girdle and 

 sternum so as to show the heart lying underneath. 



Rllihi auricle 

 Ventricle 



Fig-. 5. — Dissection of Xenopus and Rana to show the Alimentary System, etc. 



Alimentary System. 



Make a sketch showing : — The heart, lungs, liver, gall bladder and bile 

 duct going to the duodenum, exposed parts of the stomach, duodenum, 

 small intestine (or ileum), large intestine, urinary bladder, pancreas, and 

 spleen. 



12 



